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Finding the Fourth Proportional to 463,967.15, 640,319.60 and 260,052.71

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Solution

The fourth proportional to 463,967.15, 640,319.60 and 260,052.71 is: 358,897.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,967.15 : 640,319.60 = 260,052.71 : x
  2. Step 2: Convert to fraction form
    463,967.15/640,319.60 = 260,052.71/x
  3. Step 3: Cross multiply
    463,967.15x = 640,319.60 × 260,052.71
  4. Step 4: Simplify right side
    463,967.15x = 166,516,844,694.65
  5. Step 5: Solve for x
    x = 166,516,844,694.65/463,967.15
  6. Step 6: Final answer
    x = 358,897.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.